用人单位购买的劳动防护用品必须具有生产许可证、产品合格证和___爱下问搜题

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问题单项选择题

用人单位购买的劳动防护用品必须具有生产许可证、产品合格证和______，购买的防护用品须经本单位安全管理部门______。

A．质量鉴定证，管理
B．安全鉴定证，管理
C．质量鉴定证，验收
D．安全鉴定证，验收

答案

参考答案：D

完形填空

One day, a boy found the cocoon(茧) of a butterfly and brought it home. A few days later, the boy saw a small _____in the cocoon, He sat and watched for several hours as a butterfly struggled to make______body through that little hole .Suddenly it stoped.
So the boy _______ to help the butterfly ,thinking the butterfly might be_____ _He took a pair of scissors and cut the hole______.The butterfly came out of the cocoon but it________a little different .It had a weak body and small, thin________.The butterfly didn’t start to fly. In fact ,the butterfly spent the rest of its life like crawling around with a weak body and thin wings. It was never able to fly.
The boy acted with _______but he didn’t understand why it could be like this .When a butterfly crawls out of the cocoon,it must struggle. The hard work of ______out of the cocoon makes the fluid from the butterfly’s body into its wings It helps the butterfly be________to fly If the butterfly never has squeeze itself out of the cocoon,its wings will never get the fluid and it can never fly.
_________struggles are what we need in our lives. If we lived our lives without any problems, we would never learn or grow .We would not be _______we could have been and we would never fly .
In our lives, pain and suffering is the key to all windows, and sometimes even______growth ,without it ,there’s no way of life .We can’t avoid ______or problems .So ,next time you are _______a problem or difficult ,remember the butterfly .Struggle a little ----then fly！

A．as helpful as

C．as strong as

D．as creative as

B．difficulties

A．served with

B．growing into

C．bringing in

单项选择题

在存储容量表示中，1TB等于_____。

A．1024MB

B．1024PB

C．1024KB

D．1024GB